books.google.be - Biomass currently accounts for about 15 per cent of the global primary energy consumption and is particularly important as an energy resource in developing countries. It will undoubtedly play an increasing role in the world's energy consumption.Which crops make up this large percentage of our energy...http://books.google.be/books/about/Energy_plant_species.html?id=QDS8URpY4zYC&utm_source=gb-gplus-shareEnergy plant species
